Chemistry - Atomic Radius, Electronegativity and Ionization Ener

As you move down the periodic table atoms get bigger.  This is because ____________.

• The atoms have more mass.
• The atoms have more protons.
• The atoms have more energy levels
• The atoms have more nuetrons

The atom with the largest atomic radius in Group 18 is - 

• Ar
• He
• Kr
• Rn

Atomic radius generally increases as we move __________.  

• down a group and from right to left across a period 
• up a group and from left to right across a period 
• down a group and from left to right across a period 
• up a group and from right to left across a period 

Which of the following will have a larger radius than Zinc?

• Gallium
• Aluminum
• Magnesium
• Strontium

Tags

NGSS.HS-PS1-1

Order the following in increasing atomic radii: 
Ra, Be, Ca, Rb, H

• Ra, Be, Rb, H, Ca
• Rb, H, Ca, Be, Ra
• Ra, Rb, Ca, Be, H
• H, Be, Ca, Rb, Ra

Which element has the greater ionization energy?

• Lead
• Silicon

Tags

NGSS.HS-PS1-1

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Which has the greater EN: 
Cl or Al?

• Cl
• Al

Tags

NGSS.HS-PS1-1

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Electronegativity is...

• how good an atom is at attracting electrons
• the ability of an atom to lose electrons
• the energy required to remove an electron from a specific atom
• how easy it is to make friends. 

Tags

NGSS.HS-PS1-1

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The element with the largest electronegativity in the halogens is - 

• At
• F
• Cl
• Br

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The element with the lowest electronegativity in Period 3 is - 

• Na
• Cl
• Ar
• Mg